Seminario CAPA. Carlos Reyes Martínez (Departamento de Ciencias Básicas. Universidad del Bío-Bío, Chile)

Title: "New constraints on modified gravity with dimension-six operators from gravitational waves"

Carlos Reyes Martínez
(Departamento de Ciencias Básicas. Universidad del Bío-Bío, Chile)

Abstract: We study gravitational-wave propagation in the presence of dimension-6 higher-derivative operators that break 
spacetime symmetries within the gravitational Standard-Model Extension. After linearizing the theory, we derive modified 
dispersion relations and distinguish between nonbirefringent and birefringent sectors. Using multimessenger observations 
from GW170817/GRB170817A and the binary black-hole event GW150914, we place constraints on the corresponding 
dimension-6 coefficients, providing new tests of standard linearized gravity.

Fecha: jueves, 24 de septiembre de 2026
Hora:   12:10 horas
Lugar: Seminario de Física Atómica, Molecular y Nuclear